Falhas do tipo CWE-122

3.190 resultados

Estouro de heap

Ocorre quando código escreve mais dados do que o espaço alocado em uma região de memória dinâmica (heap), sobrescrevendo dados adjacentes. Um atacante pode explorar isso para corromper estruturas de dados críticas, contornar proteções de segurança ou executar código arbitrário.

Exemplo

Um servidor web aloca 256 bytes para armazenar um nome de usuário, mas copia 512 bytes de uma requisição sem validação. Os 256 bytes extras sobrescrevem ponteiros ou metadados do heap, permitindo execução de código ou negação de serviço.

Como mitigar

Use funções seguras que respeitam limites (strcpy_s, memcpy com tamanho verificado em runtime). Validar e limitar o tamanho de entrada antes de copiar. Ativar proteções como ASLR, stack canaries e ferramentas de sanitização (AddressSanitizer) em desenvolvimento.

CVE-2026-91098HIGHHP Linux Imaging and Printing (HPLIP) Software– Multiple VulnerabilitiesEPSS 1.0%CVE-2026-91106CRITICALHP Linux Imaging and Printing (HPLIP) Software– Multiple VulnerabilitiesEPSS 1.0%CVE-2026-91105HIGHHP Linux Imaging and Printing (HPLIP) Software– Multiple VulnerabilitiesEPSS 1.0%CVE-2023-5908CRITICALHeap Based Buffer Overflow in PTC KEPServerExEPSS 1.0%CVE-2023-39947HIGHAnother heap overflow in push_back_helperEPSS 1.0%CVE-2022-1061HIGHHeap Buffer Overflow in parseDragons in radareorg/radare2EPSS 1.0%CVE-2026-69590CRITICALWindows Routing and Remote Access Service (RRAS) Remote Code Execution VulnerabilityEPSS 1.0%CVE-2025-49657HIGHWindows Routing and Remote Access Service (RRAS) Remote Code Execution VulnerabilityEPSS 1.0%CVE-2018-4833—A vulnerability has been identified in RFID 181EIP (All versions), RUGGEDCOM Win (V4.4, V4.5, V5.0, and V5.1), SCALANCE X-200 switch family EPSS 1.0%CVE-2026-47289HIGHRemote Desktop Client Remote Code Execution VulnerabilityEPSS 1.0%CVE-2026-78509CRITICALMicrosoft Office Outlook Remote Code Execution VulnerabilityEPSS 1.0%CVE-2026-78510CRITICALMicrosoft Outlook and Word Remote Code Execution VulnerabilityEPSS 1.0%CVE-2023-24948HIGHWindows Bluetooth Driver Elevation of Privilege VulnerabilityEPSS 1.0%CVE-2024-21341MEDIUMWindows Kernel Remote Code Execution VulnerabilityEPSS 1.0%CVE-2025-24057HIGHMicrosoft Office Remote Code Execution VulnerabilityEPSS 1.0%CVE-2024-28896HIGHSecure Boot Security Feature Bypass VulnerabilityEPSS 1.0%CVE-2020-15195HIGHHeap buffer overflow in TensorflowEPSS 0.9%CVE-2024-26168MEDIUMSecure Boot Security Feature Bypass VulnerabilityEPSS 0.9%CVE-2020-28587HIGHA specially crafted document can cause the document parser to copy data from a particular record type into a static-sized buffer within an oEPSS 0.9%CVE-2025-53720HIGHWindows Routing and Remote Access Service (RRAS) Remote Code Execution VulnerabilityEPSS 0.9%